Saswell SAS921WHL-7-DF


Saswell SAS921WHL-7-DF is an easy to use wireless digital programmable room in-wall thermostat with big LCD screen and strong back light. It can be used with the wireless central units Saswell SCU209DE or Saswell SCU210DE for wireless underfloor heating control.

With easy to use and long range it’s the first buy for users that want more control with programming their heating schedule.

Completely digital connection between the thermostat and the receiver offers reliable and secure connection between devices with an option of feedback if the connection is lost, so you’ll always know what’s going on with your heating control device.

Installation of the thermostat is flush mount 60mm in wall.


  • Programming for 7 days with 4 or 6 daily programs (user set temperatures and time)
  • Programming available for each day itself, Mon-Fri + sat + sun or Mon-Fri + Sat-Sun 
  • Big LCD screen with strong back light
  • Showing current room temperature and day of week when turned on
  • Holiday / away mode with custom permanent set temperature
  • Wireless connectivity over radio frequency (RF 868 MHz, FSK) 
  • Temperature calibration option
  • Automatic anti-freezing option
  • Smart adaptation feature that enables the thermostat to learn how much time is needed to achieve the desired room temperature and starts with preheat so that you get a warm home on your desired temperature

Power supply:
Thermostat: AC 100 – 240V 50/60 Hz

Settings and other specs:
Temperature set from 5°C to 35°C
Accuracy ±0.5°C
Temperature display 5°C to 40°C
Ambient temperature 0°C to 50°C
Warehouse temperature -10°C to 60°C

Thermostat 86mm x 86mm x 13mm


RF (Radio Frequency) 868 MHz, FSK ; Range up to 100m on open air, otherwise depends on building type and interference


Saswell SAS921WHL-7-DF (thermostat)
Slovenski jezik (Slovenia)
English language (UK)
Hrvatski jezik (Croatia)
Bosanski jezik (BiH)
Srpski jezik (Srbija)


Declaration of conformity
Slovenski jezik (Slovenia) – Izjava o skladnosti
English language (UK)
Hrvatski jezik (Croatia)
Bosanski jezik (BiH)
Srpski jezik (Srbija)

No video avaliable